160 Machine Drawing
dharm
d:\N-Design\Des10-1.pm5
10.6 How are boiler joints classified?
10.7 Differentiate between :
(a) lap joint and butt joint, (b) chain riveting and zig-zag riveting
10.8 What is the function of a cover plate in riveted joints?DRAWING EXERCISES
10.1 Giving proportionate dimensions, sketch any four forms of commonly used rivet heads, choosing
the rivet diameter as 10 mm.
10.2 Sketch any two types of structural riveted joints, indicating proportionate dimensions.
10.3 Draw (a) sectional view from the front and (b) view from above, of the following riveted joints, to
join plates of thickness 10 mm:
(i) single riveted lap joint, (ii) double riveted chain lap joint, (iii) double riveted zig-zag lap joint,
(iv) single riveted, single strap butt joint, (v) single riveted, double strap butt joint (vi) double
riveted, double strap, chain butt joint and (vii) double riveted, double strap, zig-zag butt joint.
10.4 Through sketches, illustrate the caulking and fullering operations.